perf/core: Check sample_type in perf_sample_save_callchain

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Check sample_type in perf_sample_save_callchain() to prevent
saving callchain data when it isn't required.

Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Yabin Cui <yabinc@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240515193610.2350456-3-yabinc@google.com

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Yabin Cui 2024-05-15 12:36:08 -07:00 • committed by Ingo Molnar

parent b9c44b9147

commit f226805bc5

3 changed files with 8 additions and 6 deletions

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3

arch/x86/events/amd/ibs.c

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arch/x86/events/intel/ds.c

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include/linux/perf_event.h

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